UA4476United Airlines · IAD → BUF
live · 41m ago
Route confirmed United Airlines

UA4476 WashingtonIAD · 08:25 BuffaloBUF · 09:48

UA4476 by United Airlines flies from Washington (IAD) to Buffalo (BUF).

Right nowNext departure today Operates daily
08:44

scheduled from IAD

⚖ UA4476 typically leaves +17 and lands −17. The air wins minutes back.

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
09-11
+15 gate · −19 arrival
09-07
+12 gate · −17 arrival
09-06
+7 gate · −28 arrival
09-05
+15 gate · −15 arrival
09-04
+15 gate · −19 arrival
09-03
+72 gate · +58 arrival
08-31
+27 gate · −6 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −17 min · 0 cancelled · 10 operations tracked

The route today

live boards
IADWashingtonModerate riskIAD delay board →
BUFBuffaloOn-time likelyBUF delay board →
IAD→BUFevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
41%Chance of 15+ min delay
3.8%Chance of cancellation
+10 minAvg hub delay right now

Driven mainly by BUF (Buffalo), currently flying VFR (visual). For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Washington to Buffalo flights today

same route · United Airlines
UA4335departs 12:50
UA4358departs 17:36
UA4546departs 17:36
UA6149departs 17:36
UA4558departs 17:40
UA3463departs 22:17

If UA4476 is cancelled, these are the other United Airlines nonstop flights from Washington to Buffalo on the same day, with scheduled departure times in IAD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA4476 actually runs

Pro Flight Search has tracked every published board update for UA4476 across the IAD and BUF boards: schedule changes, gate pushes and actual clocks. Usually lands ~16 min early. Based on 10 confirmed landings · 9/10 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how UA4476 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
09-11IAD 08:25 08:40 (+15)BUF 09:48 09:29 (−19)
09-07IAD 08:25 08:37 (+12)BUF 09:48 09:31 (−17)
09-06IAD 08:25 08:32 (+7)BUF 09:48 09:20 (−28)
09-05IAD 08:25 08:40 (+15)BUF 09:48 09:33 (−15)
09-04IAD 08:25 08:40 (+15)BUF 09:48 09:29 (−19)
09-03IAD 08:25 09:37 (+72)BUF 09:48 10:46 (+58)
08-31IAD 08:25 08:52 (+27)BUF 09:48 09:42 (−6)
08-30IAD 08:25 08:51 (+26)BUF 09:48 09:39 (−9)
08-29IAD 08:25 08:42 (+17)BUF 09:48 09:29 (−19)
08-28IAD 08:25 08:43 (+18)BUF 09:48 09:29 (−19)

Aircraft

Recent tails: N544GJ, N511GJ, N522GJ, N509GJ.

Board clocks recorded as IAD and BUF published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — UA4476 Washington to Buffalo on-time performance, measured from the IAD and BUF airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4476
How we measure this →